Renewable head tool



Nov. 1 1, 1930. J. G. SALAZAR RENEWABLE HEAD TOOL Filed July 18, 1929"abbmcqo Patented Nov. 11, 1930 UNITED STATES JESS G. sALAzAn, or warm,camromvm A RENEWABLE HEAn 'roon Application filed July 18, 1929; Ser ia1No. 379,229.

. The invention relates to nail-driving tools and primarily tobox-makers and lathers hatchets. i

It is the principal object of the invention to provide a new andimproved construction of simple and inexpensive nature which will enablea worn out or damaged nail-driving head to be replaced with a new headorwill permit easy interchange of heads having 1 teeth of differentdegrees of fineness, or no teeth, according to the character of work beingdone.

In carrying out the above end, the head is provided with an integralthreaded stud and the body of the tool is formed with a socket intowhich saidstud is threaded, and it is a further aim of the invention toprovide a unique washer between the head and body which is of yieldablecharacter and will assist in holding the head against loose movement,even though the screw threads connecting it with the body may becomeworn. This washer-also assists in receiving the impact when blows arestruck and consequently it prevents'battering of the contiguous faces ofthe tool body and head. It is a further object of the invention toprovide new and improved construction whereby a stud on a renewable headis locked against accidental rotation within its receiving socket andwhereby a washer between the head and the'tool body is held againstturning with respect to eithertsaid head or saidbody. A still furtherobject is to provide a construction in which only a minimum amount ofmachining is necessary during manufacture and in .whichsuch machiningmay be performedon readily accessible surfaces.

With the foregoing inview, the invention resides in the novel subjectmatter hereinafter described and claimed, descriptionbeing accomplishedby reference to the accompanying drawing. a

Fig. 1is a side elevation of a box-makers hatchet constructedinaccordance with the invention. I

Fig. 2 is a detail vertical sectional view on line 22 of Fig. 1. i aFig. 3 is a disassembled perspective view.

The drawing above briefly described illustrates the preferred form ofconstruction and while this construction will be specifically explained,itis to be understoodthat within the scope of the invention as claimed,variations may be made. 1

- The numeral 4 denotes the tool body carried in the usual way bythehandle 5 and projecting laterally from the latter. The end of thebody. .4: remote from the conventional blade 16, which end is denoted at7 is fiat, and the body 4 is formed with a threaded socket 8 which opensthrough said flat end 7 and has its axis at right angles thereto. Lyingagainst the flat end 7 is a washer 9 of yieldable material such asrather' highly compressed felt, said washer having an opening 10 alignedwith the opening 8 and being provided witha lug 11 projectinginwardlyfrom the wallof said opening. Lying against the outersideof thewasher 9,is a head 12 having a flat innerside and provided with anintegral threaded stud13 whose axis is at right angles to said side.This stud passes through the opening 10 and is removably threaded intothe socket 8. Stud 13 is formed with a longitudinal groove 14 whichreceives1 the lug 11 ofthe washer9,preventing turning of the latter withrespect to the stud 13 and head 12. Then too,.a pointed set screw 15 isthreaded into the body 4 with its pointed in ner end received in thegroove 14, holding stud13 and head. 12 againstaccidental turning withregard to said body. l I lVhen applying the head 12, it may b turned toan extremely tight position on ac count of the yieldability of thewasher 9 and when so tightening the head, the washer 9 will rotatebodily with it due to the connection 11-14. It is thus insured that whenthe head reaches its final position, the edges of the washer shall bein. common planes with the sides of the head 12 and body 4. Tighteningof the screw 15 now holds all parts in V ofthe impact When strikingblowsandpre- Within the scope ofth invention'qlyingagai nst said outer end ofsaid body and 7 requires little machining; 'Iiecssitate ssuch machiningonly on surfaces wh ch are 7 readily accessible.

As above stated, While-thepreierredcom struction is'disclosed,variations may be made What is claimed isle. 1 I 5 '1. Anaildriving'tool coinprisinga'handlee carried body projecting laterally fromthe V a handle axis and having a socket opening through its outer end, acompressible- Washer 7 having an opening: alined With said socket-,

anaildrivinghead lying against theouterl' a 31(18 of sa'id'vvaslierandhaving an ntegral threaded studpassing throughsaid opening and removablyreceived in said socket, means for preventing relative turning of saidWash- VI er and head, and means-for locking said-stud 7 againstaccidental turning 2. A nail drivingztool comprising'a-handle carriedbody. projecting: laterally from the I handle. axis "and havinga"socketT-ope'ning through its outer end, awasher lying against '2 saidouter end'of said'body and having an opening registeringWitlrsaid'socket',,a' nail. driving head lying against the outer side,-

ofsaidvwasher and having an-integralthread-l;

stud passing through saidopeningand: l t. "'r'emovably received insaidso'cket,rsaid stud" r 1 I havingaloilgitudinal groove and saidwasher" being providedvvitha lugreceived'in 1saidl grooveito.prevent.'relativerturning of the a,

Washer'and' head, and a set screw threaded in 7' saidbody andhavingits'innerrend received infsaid groove to hold-said "studland headagainst'accidentalpturning.

In --testimony I wherjeof-v I have herewithaffixed my signature}

